| Field | Value |
|---|---|
| Unique Sample ID Number | W185529 |
| Analytical Job Number | AB97A |
| Submitter Name | Mclaughlin, Robert J. |
| Date Submitted | 19750205 |
| Field Number | MG-479 |
| Latitude | 38.78333 |
| Longitude | -122.85 |
| Source of Sample | outcrop |
| Collection Method | single/grab |
| Primary Classification | rock |
| Secondary Classification | metamorphic |
| Specific Name | metagraywacke |
| Additional Attributes and Comments | METAGRAYWACKE; not metasomatic; quartz present; aluminosilicate, pelitic (schist, phyllite, mica gneiss); |
| Geologic Age or Range | jurassic--cretaceous |
| Stratigraphic Unit Name | FRANCISCAN |
| Type of Metamorphism | regional |
| Metamorphic Facies or Grade | prehnite-pumpellyite-metagraywacke |
| (click for info) | |
| Geologic map unit | -122.85, 38.78333 |
| Nearby scientific data | Find additional scientific data near this location |
| Element | Measured value | Units of measure | Analytical method |
|---|---|---|---|
| H2O+ | 2.2 | percent bound water | (unknown method) |
| H2O- | 0.58 | percent moisture | (unknown method) |
| CO2 | 6.8 | percent by weight | Unspecified Methods |
| Na2O | 2.2 | percent by weight | Unspecified Methods |
| MgO | 1.6 | percent by weight | Unspecified Methods |
| Al2O3 | 11 | percent by weight | Unspecified Methods |
| SiO2 | 58.1 | percent by weight | Unspecified Methods |
| P2O5 | 0.26 | percent by weight | Unspecified Methods |
| K2O | 1.5 | percent by weight | Unspecified Methods |
| CaO | 10.6 | percent by weight | Unspecified Methods |
| TiO2 | 0.62 | percent by weight | Unspecified Methods |
| MnO | 0.2 | percent by weight | Unspecified Methods |
| Fe2O3 | 1.4 | percent by weight | Unspecified Methods |
| FeO | 2.6 | percent by weight | Unspecified Methods |